Now, using algebraic topology, researchers from the UK have developed a scheme for creating optical vortices in propagating laser fields to form knots and links (Nature Phys. 6, 118–121 ...
Visit the homepage for more information. The story of the Devotion to Mary, Untier of Knots begins with the German nobleman Wolfgang Langenmantel (1568-1637). For some years, he had been married to ...